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Single Family ResidenceResidential
$115,229$105 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

3540 WELLES ST

DECATUR, IL 62521
1
Baths
1,096 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
2.38 ac
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$115K
$107K low$124K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,388 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$35,851 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$4,845
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$31,006
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$32,458
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$107,563

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.53
55
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
19
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
83
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
66
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
43
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.19 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMACON
Lot (acres)The size of the land the home sits on, from county records.2.38
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 120 ft²

Transaction History(1)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
McGaughey Elementary School
Elementary · Grades PK–1 · 2.6 mi
H
Mt Zion High SchoolB+
High · Grades 9–12 · 3.5 mi
M
Mt Zion Jr High SchoolB
Middle · Grades 7–8 · 3.5 mi

District: Mount Zion Community Unit School District 3

Neighborhood · ZIP 62521These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.94
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.55

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.32,847
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.522 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$67,684
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$82,291
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.39 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

3540 Welles St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth less than 76% of homes in Muffley
  • Costs less per square foot than 73% of homes in Decatur 62521
  • Smaller than 67% of homes in Decatur 62521
  • Has a bigger lot than 94% of homes in Muffley
  • Older than 96% of homes in Muffley

What homes are worth in Decatur 62521

Each bar is how many homes fall in that price range. The marker is this home.

This home
$36K$555K

This home is worth more than 38% of homes in Decatur 62521.

How it measures up in Decatur 62521

The dot is this home. The mark in the middle is the typical home in Decatur 62521.

Estimated value$115,229
CheaperTypical $143,161Pricier

Pricier than 38% of homes nearby

Price per ft²$105
CheaperTypical $131Pricier

Pricier than 27% of homes nearby

Living area1,096 ft²
SmallerTypical 1,288 ft²Bigger

Bigger than 33% of homes nearby

Lot size2.38 ac
SmallerTypical 0.28 acBigger

Bigger than 92% of homes nearby

Year built1930
OlderTypical 1962Newer

Newer than 14% of homes nearby

How 3540 Welles St ranks against every home in each area.
MeasureThis homeMuffleyDecatur 62521Macon County
Estimated valuepricier than$115,22924% of homes38% of homes41% of homes
Price per ft²pricier than$10531% of homes27% of homes42% of homes
Living areabigger than1,096 ft²38% of homes33% of homes39% of homes
Lot sizebigger than2.38 ac94% of homes92% of homes92% of homes
Year builtnewer than19304% of homes14% of homes23% of homes

About 3540 Welles St

How much is 3540 Welles St, Decatur, IL worth?

The TopHap Estimate for 3540 Welles St, Decatur, IL is $115,229 as of Oct 21, 2026. The likely range is $106,813 to $123,645. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3540 Welles St, Decatur, IL last sell?

3540 Welles St, Decatur, IL last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 3540 Welles St, Decatur, IL?

3540 Welles St, Decatur, IL has 1 bathrooms, 1,096 square feet of living space and a 2.38-acre lot.

When was 3540 Welles St, Decatur, IL built?

3540 Welles St, Decatur, IL was built in 1930, making it 96 years old. The building has 1 story.

What schools serve 3540 Welles St, Decatur, IL?

3540 Welles St, Decatur, IL is assigned to McGaughey Elementary School (elementary); Mt Zion High School (high), rated B+; Mt Zion Jr High School (middle), rated B. All sit in Mount Zion Community Unit School District 3. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3540 Welles St, Decatur, IL compare to other homes in Decatur 62521?

Among the 14,947 homes in Decatur 62521, it is worth more than 38% of them ($115,229 against a typical $143,161), its price per square foot is higher than 27% of them ($105 against a typical $131), it is bigger than 33% of them (1,096 ft² against a typical 1,288 ft²), its lot is bigger than 92% of them (2.38 ac against a typical 0.28 ac) and it is newer than 14% of them (1930 against a typical 1962). Measured against all of Macon County, it is worth more than 41% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 3540 Welles St, Decatur, IL?

The 2025 property tax bill for 3540 Welles St, Decatur, IL was $2,388. The county assessed it at $35,851.

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